Duplex fastener



April 30, 1935. E. R. GRENHOQD 1,999,633

' DUPLEX FASTENER Filed March 26, 1934 f1 Homey Invenior Patented Apr.30, 1935 UNITED STATES PATENT OFFICE Application March 26,

2 Claims.

This invention relates to a duplex fastener for fastening togetherseveral sheets of paper or the like, the general object of the inventionbeing to provide a flexible member having a strip of metal a 5 firstbent into U-shape and passed through the member, after which portions ofthe metal strip are bent against the opposite face of the member andthen the end portions of the metal strip are bent and extended at rightangles to form a pointed stem for entering the sheets or other articles,with the rear face of the member coa'ted with adhesive so that thismember can be attached to a supporting member or the like.

This invention also consists in certain other l5 features ofconstruction and in the combination and arrangement of the severalparts, to be hereinafter fully described, illustrated in theaccompanying drawing and specically pointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawing wherein like characters denote like orcorresponding parts throughout the several views, and in which:--

Figure 1 is a view showing the invention in use for holding severalsheets of material to a cover member.

Figure 2 is an enlarged fragmentary View, showing the invention appliedto a folder or cover. Figure 3 is a section on line 3 3 of Figure 2.Figure 4 is a perspective view of the device.

Figure 5 is a View looking toward the rear face of the device.

In this drawing, the numeral l indicates a disk of suitable material,such as paper, fabric or the like, and the numeral 2 indicates a smallmetal strip which is rst bent into U-shape with its limbs pressedthrough the disk, with the bight 3 of the strip engaging the rear faceof the disk, y

after which the strip is bent inwardly to provide the twoparts l whichcontact the outer face of the disk and extend parallel to the bight part3 and then the two end portions of the metal strip are bent at rightangles outwardly from the disk to form the two contacting stem portions5, the 45 ends of which are pointed. An adhesive coating is placed onthe rear face of the disk, as shown at 6, and in the process ofmanufacture, after the metal strip is folded, as shown, considerablepres- 1934, serial No. 717,526

sure is applied to the parts so as to press the bight part 3 and theparts 4 into the disk. This makes the completed device flat and rigid.

This device can be used for various'purposes, such as holding sheetsA Ain a folder or cover B, as shown in Figures 1, 2 and 3, or it can beused for attaching one or more sheets to another sheet.

As will be understood, the coated side of the disk is moistened andstuck to the supporting member and the sheets or other articles toV beattached to the supporting member are pressed against the stem formingparts 5 so that the stem will pass through the sheets, after which thetwo parts of the stem are bent over to hold the sheets in position, asshown in Figures 1 and 2.

It is thought from the foregoing description that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall within the scope of the appended claims.

What is claimed is:-

1. A fastening device of the class described comprising a piece ofmaterial and a metal strip bent into U-shape with its limbs passingthrough the piece of material, with the bight part of the metal stripcontacting one face of the piece and the inner portions of the limbsbeing bent toward each other to Contact the other face of the piece, theend portions extending a right angles from the piece and contacting eachother to form a two-part bendable stem, the outer end of which ispointed, said bight portion and those portions which contact the outerface of the piece being pressed into the piece.

2. A fastening device of the class described comprising a piece ofmaterial and a strip bent into substantial U-shape with its limbspassing through the piece of material, with the bight part of the stripcontacting and being pressed into one face of the piece and the innerportions of the limbs being bent toward each other to contact the otherface of the piece and being pressed thereinto, the end portionsextending outwardly from said other face alongside of each other.

ELISHA RUSSELL GREENI-IOOD.

